The online help for Integrated Cyber Defence exchange (ICDx) points to already existing product resources for Data Loss Preventions (DLP) as the source for file Symantec_DLP_15.0_Incident_Data_Views.zip. When you look in the symconnect download site using your DLP serial number, the file is not in the download folder.
Please contact Symantec Technical Support with your serial number to investigate further.